Edward cheshire



t e e h s S t e e h S 4 E R I H S E H G E a d 0 M 0 W BOOK SEWING MACHINE.

No. 317,506. Patented May 12, 1885.

/ III llilllllllllllllllli l lllll l l I l l l l l I I l L ATTEET INVENTUR di/Q PETERs, Photo-Lithograph, Washington, D. C,

(No Model.) 4 SheetsSheet 2.

E. CHESHIRE.

BOOK SEWINGMAGHINE.

No. 817,506. Patented May 12, 1885.

ATTEET XML w Q (No Model.) 4 SheetsSheet 3.

E. CHESHIRE. BOOK SEWING MACHINE.

No. 317,506. Patented May 12, 1885.

ATTEET INVEN UR (No Model.) 4Sheets-Sheet 4.

- E- CHESHIRE.

BOOK SEWING MAGHINE. No. 317,506. Patented May 12, 1885.

z i x l {0 l I I 2 6 E J? i I 2' :9 j? l 1" w I 6 Q i i 9 Jan UNITED STATES PATENT OFFICE.

EDWARD CHESHIRE, OF CINCINNATI, OHIO, ASSIGNOR OF ONE-HALF TO ELIZABETH CHESHIRE, OF SAME PLACE.

BOOK-SEWING MACHINE.

SPECIFICATION forming part of Letters Patent No. 317,506, dated May 12,1885.

Application filed May 28, 1884.

To a whom it may concern.-

Be itknown that I, EDWARD CHESHIRE, a citizen of the United States, residing at (lincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Book-Sewing Machines, of which the following is a specification.

My invention relates to a book-sewing machine, more particularly to detail improvements in the machine forming the subject matter of an application for Letters Patent of the United States, filed by Elizabeth Cheshire and myself, jointly, May 24. 1883, serial number 96,063, all of which will be fully hereinafter described. I

In the accompanying drawings, Figure 1 is a plan view of the upper working parts ofa book-sewing machine embracing myimprovementsfi Fig. 2 is a plan view of the automatic tension devices. Fig.3 is a transverse section taken on line ac 00, Fig. 2, showing one of the tenfsionsprings and a take-up spring, to gether with the plate and shaft upon which they are mounted. Fig. 4 is atransverse sec 2 tion taken on lineyy, Fig. 2, showing another spring-tension plate and its depressing eccentric. Fig. 5 is a perspective view showing a portion; of the needle and main frames and the device for operating the spring tension and take-up devices illustrated in Figs. 2, 3, and

4. Fig. (i is an elevation of one of the eyeplates through which the sewing-twines are passed and guided from the balls to the ten- 1 19 is a broken inside elevation showing a 85 sion and take-up springs. Fig. 7 is a perspec tive view of the slotted transverse bar upon thereon. I same. Fig. 11 is an inside sectional elevation of one of the kettle -stitch needle-frames, 1 5o taken on line 2 2, Fig. 9. Fig. 12 is a front frames, showing the kettle-stitch take-up Fig. 10 is a front elevation of the (No model.)

the pendent arms broken off. Fig. 13 is a cross-section of the forward end of the feedcarriage, showing the toothed signature-supporting plate, one of the outer bumpers, and the transverse rod or bar beneath the edge of said toothed plate for supporting the shuttlethread. Fig. 14 is a cross-section similar to Fig. 13, showing the feed-carriage with its toothed signature-plate, transverse shuttle- 6o thread-supporting rod, and one of the pendent arms for compactly pressing the sewed signatures and keeping the hanging leaf or leaves of the signature on the feed table perpendicular, which pendent arms are fully shown and described in said application, filed May 24, I883, and which we deem unnecessary to describe herein, as they are not claimed. Fig.

15 is a perspective view of one of the end bumpers or presser-heads of the feed-carriage, '70 showing a bow-spring at its top for guiding the shuttlethread through the slit in the signature to the kettlestiteh twine. Fig. 16 is a plan view of a portion of the feed-carriage and main frame, showing the toothed signature-plute with a slitting-knife and guide mounted thereon, and the shuttle-race frame with a shuttle-catch and temporary locking device attached thereto, and hoidin g the shuttle firmly in place in connection with the pick er-staffdriving-head. Fig. 1' isaperspective view of one of the adjustable signature-guides. Fig. 18 is a perspective view of the adjustable knife and guide-supporting plate. Fig.

part of the main frame, one of the slide guides of the feed-table, the shuttle-raceway. the temporary 1ock-bar for the feed-carriage, and the cam on the driving-shaft for raising said lock-bar into locking engagement with the feed-table. Fig. 20 is a transverse section of the device shown in Fig. 19, taken on line y y, but showing a broken section of the feedtable locked in position for the sewing operation. Fig. 21 is a bottom plan view of the outer fore corner of either of the kettle-stitch frames, showing the adjustable bent plate thereon for operating the shuttle-locking device.

Arepresents the main frame of the ma- 10o chine, which, in general, together with suita elevation of the teed-carriage, showing one of l ble driving mechanism, (not shown,)is identical with that shown and described in the application'aforesaid- The same or any other suitable power mechanism may be employed to drive the feed and sewing devices, and as ldo not claim any special means herein the illustration of them in the accompanying drawings or any description will be unnecessary.

B represents the feed-carriage, having a transverse series of teeth B along the inner edge of its table B and a tongue, b, on both its side edges, which travel in grooves a in the upper part of the main frame.

0 represents a vertical bar sliding in a clip, 0, attached to the main frame, The lower end of bar G preferably engages the periphery of a cam, c, keyed to thedrivingshaft 0, (shown in section in Fig. 19,) and is provided at its upper end with a wedge shape tongue, 0, Which enters a notch, 11, cut in the opposite edges or tongues b of the feedtahle. This vertical bar effectually locks thefced-carriage in place during the sewing operation, and thereby prevents any forward or rearward movement thereof at the time the shuttle is driven across, thus obviating any dislocation of the signature out of proper relation with the shuttle and the sewing-needles. The bar 0 drops by gravity after the sewing operation, on the rotation of the cam, and permits the return movement of the feed-carriage for the release of one signature and the feeding of another.

D represents a bar provided at one end Witha knife edge, (I, and at the other with an upright arm, (1. Bar D is pivoted intermediate its ends to a plate, D, which is adjustably secured to the forward edge of the feed-table over the teeth B in a position to bring the knife (1 adjacent the fold of the signature whose end lies upon it.

E represents a spring secured at one end to plate D, and bearing at its other end against the knife-bar to return it to its normal position after its cutting operation, which. will be presently described.

eis a rib on the bottom of plate I), fitting into a groove, e, in the face of the feed-table, to prevent any lateral or torsional mo ement of the plate during the operation of the knifebar, and to accurately and firmly set the plate in place.

F represents a guide, adjustably secured upon plate I) in rear of the knife-bar.

The knife bar D, plate D, and guide F are arranged in duplicate at either end the toothed plate of the feed-table, the signatures being placed between said guides with. their respective folds resting upon the edge of the toothed plate and over the knives (l.

G represents the main needle-frame, and,

G G the frames upon which the needles for sewing the kettle-stitches are mounted.

g 9 represents thcneedles.

The needle-frames G G are reciprocated for operation in connection with the signature by any suitable power mechanism, orsuch as is shown and described in the aforesaid application.

H represents an angular abutment-plate one being adjustably secured to the bottom of each of the kettle-stitch frames, at its outer fore corner, as shown in Fig. 11, its purpose being described hereinafter.

1 represents an upright bent arm or book attached to both the kettle-stitch frames in a position to overhang the needles g.

J J represent hinged bars attached at the fore end of themain needle-frame, and provided with semicircular notches j, through which the twines are passed to the needles.

Those hinged-bars, when swung outwardly. as shown in dotted lines, Fig. 9, permit the adjustment of the needles while they are threaded when it is desired to sew narrower or wider signatures.

J J are adjustable lock-pins inserted through holes in lugs on the main needleframe and in the free ends of the hinged bars J.

K represents a transverse bar, suspended above the meeting-point of the needle and feed-frames, more particularly speaking, at the termination of the stroke of the teed-carriage.

K represents presser-spri n gs attached to the bar K by thumb screws 10, which pass through slots in the bar to permit lateral adjustment of the springs for varying-sized signatures. Presser-springs K are each composed of two limbs, one limb, i, being provided with a pendcnt end, against which the fold of the signature on the advancing tbedcarriage comes in contact to set the signature closely in position upon the edge of the toothed plate ofsaid feedcarriage, and the other limb, 'i, being bowed sufficiently to lie slightlybelow the plane or surface of the said toothed plate, so that its pressure hile upon the signature and plate \vill hold said signature firmly during the ()1)- (3 tion of the slit-ting knives d n nd the S(\\"lll pendent inwardly-craved free ends 12 n represents hook shape springs projecting from the collars N, beneath the spring bars N. g g are rods upon which the kettle-stitch frames G slide within the main needle-frame 1 0 represents flat spring-plates, attached by thumb-screws to plate L1, adjacent the springbars N, and 0 are small eyes or perforations Q in the spring-plates 0.

P represents upright plates secured to the f edge of plate L, in rear of the spring-bars LT,

and p are open slots or eyes in plate P through which the twines from the balls pass, and are guided to the springs N and n.

1? represents upturned plates adj ustabl ysej cured to the rear upper face of the main frame A, in a position to trip the pendent arms M,

and cause a slight backward rotation of shaft 1 I, which raises the cams 0 out of pressing engagement with the spring plates 0.

Q represents the shuttle-race trough, which is arranged in duplicate at both sides of frame and the shuttle-race troughs. Stud 7' fits a hole or recess in the sides of said troughs, free to move inwardly 0r outwardly therein.

7' represents the short end of either bar It, Both ends 1" and i are provided with studs or pins 8 s, which project 1 and r the long end.

through openings in the raceways a very slight distance beyond the inner walls thereof,

but sufficient for-the pin 8 to lock the shuttle firmly in place after its point has passed i The end r of bar B being ofl greater length than end 1", the purchase on l that end caused by the presence of the slnittle after its point has passed pin's is greater 5 and effectually holds the shuttle at the terinij the pin 8.

nation of its stroke, thereby preventing any rebounding thereof which would otherwise slacken theshuttle-thread, and lay it so as to be in inoperative relation with the kettle stitch twines. This temporary locking device for the shuttle also serves to sustain it in position for receiving the full, cli'ective blow of the picker-staif'head R, as shown in Figs. 1 and 16.

S represents oblique offsets or shoulders at the inner ends of the shuttlc-raceways, and S are vertical pins or stops adjacent thereto on the race-troughs.

8 represents notches in the forward edge of the feed-carriage, into which the pins S rest at the end of the stroke of said carriage. When the feedcarriage has approached i ts limit ofniotion against stops S, the ends of the toothed plate cover the raceways, and the receptacles 1 formed by the oblique offsets or shoulders S prevent the jamming or catching of the shuttlethread between said toothed plate and the race-troughs on its way to the sewed signa- I tures'which are piled up in book form in rear of the raceways.

T represents a transverse rod or bar suspended beneath the edge of the toothed plate of the feed-carriage by a series of bumpers or presser-heads, T T.

In the passage of the shuttle across the machine its thread trails loosely in its wake, and iirorder that said threid may not accidentally drop into contact with the corners of the outer presser-heads, T, or any other obstruction, provide said rod T, which catches and supports it safely till it becomes taut inthe fold of the signature.

The presserheads T 'T rest against the hanging leaves of the signature during the sewing operation, and the outer ones, T, are supplied with bow springs 25, which project upwardly from the tops of said bumpers directly beneath the slits in the ends of the unsewed signature on the feed-table, and serve as positive means for supporting the shuttlethread and guiding it directly into the slits in the ends of the signatures to the kettlestitcli twines. The springs t project upwardly sufficient to guide the shuttlethread directly in place into either of the open slits at the end of each signature, and their tops being preferably on a line with the beveled edge of the teeth of the feed-table lie closely within the said slits. The object of the springs t is to provide guide-supports for the thread, which supports will yield when the slittingviate any collision to dull the knives, which would likely happen in case the tops of the l bumpers were rigid. Bumpers T T are preferably secured to the bar U of the feedtable by means of thuinbscrews whose heads restin longitudinal T slots in the said bar U, for permitting the lateral adjustment of the bumpers for varyingsized signatures.

The operation of the tension and take-up devices is as follows: The twines pass from the feed-balls, which are held in a box or re ccptacle above the needle-frames, to the guide eye-plates P; thence beneath the bent free ends it of the springs N to the hook-springs n; thence downwaidly through the eyes 0 in spring-plates O; thence beneath the ends of l springs O to the oscillating take-up frame V, (shown in Fig. l, and fully described in the aforesaid application.) From thetakeup frame V, the middle twines pass through the eyes j in the forward end of the main needle-frame, and thence through the needles to a fasteningpoint beneath the iieedletraines. The outer or kettle stitch twines pass from the takeiip frame V to the upright arms or books I, around which they are turned, and thence, to the outer needles, g, through them, and are secured as the other twines. In the advance l movement of the needle-frames the twines are drawn out from their balls, and the proper tension exerted on them by means of the springplates 0, which are depressed by cams O on shalt Z, and it in turn by pendent arms M and c0il-springs ill. The pendent curved ends a i ofsprings N press firmly upon the twines on i the backward movement of the needle-frames knives D (I pass over them, and thereby obwhen the pendent arms M strike the plates P, and the hook-springs n are then depressed, which allows the passage of but sufficient twine to form the loops of the last sewed signature, and thereby draws the loops taut. As the kettlestitch is made at but one end of the signature at each stroke of the needleframes, only one of the kettle-stitch frames moves forward on the slides within the main needleframe. The other frame remains at rest in said needle-frame, and the twine which passes from the take-up frame V to the needle passes first around the upright hook I, which takes up the slack therein, as it does not combine with the shuttle thread, and maintains the proper tension on it to prevent its becom- When the kettlestitch is to be made at either end of the signature, the take up hook I does not act on the twine or interfere with its operation in contion, with the feed-table B,

ing loose or entangled.

nection with the shuttle-thread.

The operation of either of the temporary locking devices for the shuttle is caused by the pendent angular plate H on either of the advancing kettle-stitch frames coming in contact with the inner end of lever q.

Said plate H is slotted and adjustably attached to the bottom of said kettle-stitch frames by a screw passing through the slot, so that it can be moved forward or backward on said frame to make allowance for any wear tality of said locking devices.

The operation of the knives for slitting the ends of the signature is as follows: The. feedcarriage is moved toward the advancing needleframe, and at the instant the points of the needles enter the fold of the signature the upf right arms (1 of bars D strike against the, transverse bar K, causing the knife-edges d 1 to pass through the fold of the signature and the kettle-stitch threads. The

posit-ion by means of the presser-springs E.

I claim- 1. In a booksewing machine, the coinbina- 1 tion, with the feed-table B, of the signatureand adapted to be operated at the termination forth l 2. In a book-sewing machine, the combnnt 1 tion, with the feed tab e B and knife-bar'D, 3

tion with thefeed-table B, knife-bars D, and

adjustable plates .D of the signature-guides adapt the machine to accommodate varyingand sized signatures, substantially as herein set forth.

4. In a book-sewing machine, the combination, with the feed-table B, having tenoned edges I), fitting ingrooves in. the main frame and provided with notches I), of vertical rods 0, thrust upwardly into locking engagement 6. In abook sewing machine, the coinbinza of the pressen heads or bumpers '1 'I, attached beneath the edge of the toothed plate of the table, the end orouter bumpers, T, being provided with overhanging springs t to guide the shuttle-thread into the slits in the ends of the signatures, substantially as herein set forth.

7. In a book-sewing machine, the combination, with the shuttle-raceways Q, of the compression or look pins .9 s, mounted upon the 1 pivotal bar R, the pressure-lever q, and plate of the shuttle, and thereby secure the proper locking engagement through the instrumenl H, carried by the reciprocating needle-frame adapted to catch and hold the shuttle at either end of its stroke, substantially as herein set forth.

8. In a book-sewing machine, the combination, with the feed-table B and carriage B, of theshnttle raceways or troughs Q, provided at their inner ends with an oblique offset or shoulder, S, and a pin, S, the ofi'se; being adapted to form a receptacle for the shuttlethread, to prevent its jamming between the cut a slit of sufficient length to accommodate knives are then automatically retracted to their normal fecdtable and raceway when stretched between the shuttle and the sewed signatures, and the pin to serve as a positive stop for the feed-carriage, substantially as herein setforth.

9. In a book-sewing machine, the combination, with the feedtable, of a transverse bar,

I K, rigidly mounted upon the main frame and slitting knife-bars I) d d, mounted thereon,

provided with adjustable spri gs K i 21, which I closely set the fold of the signature upon the of the stroke of said feed-table to slit the signature, and automatically retracted to their normal position, substantially as herein sct toothed edge of said feed table and press it down firmly during the slitting and sewing operation, substantially as herein set forth.

10. In a book-sewing machine, the combina tion, with the main needle-frame G, of hinged bars J, provided with open threarl-ymssages j, and attached to the fore end of said needleframe, being locked in position and adapted to be opened for the adjustment of the needles while threaded, substantially as herein set forth.

11. In a book-sewing machine, the combination, with the kettle-stitch frames Gr G, of

upright arms or books I, adapted to receive a F, adjustably secured upon said plates 1) to i turn or turns of the kettle-stitch tWines, and form a take-up for the twine which is not to he looped with the shuttle-thread, snbstanward movement thereof b -'astop,P,substan- 1o tially as herein set forth. 1 tially as herein set forth.

12. In abook-sewing machine, the colnbina- In testimony of which invention I hereunto ti0n,with thereciprocatingneedle-frames G G, set my hand in the presence of two subscrib- 5 of tension spring-bars N, take-up hooks n, ing witnesses.

plates 0, and eccentrics O, mounted upon a EDWARD CHESHIRE.

shaft provided with pendent arms M, andoper Witnesses: ated for the forward movement of the needleframes by coil-springs M and for the back JOHN E. JoNEs, THos. CHESHIRE. 

